Background: The present study aimed to evaluate the demographics of the patients who applied for implant treatment to Inonu University, Faculty of Dentistry, Department of Prosthodontics between 2010 and 2016. Methods: In implant patients, implant locations, type of restoration after implant treatment, age and gender of the patients were determined using Metasoft software. FDI numbering system was used for implant locations. Descriptive statistics were analyzed using chi-square test (P < 0.05). Results: It was found that a total of 1000 patients (410 males, 590 females) received 2955 implants during the specified period. 1052 implants were received by individuals between the ages of 41 and 50. There were statistical differences between age groups based on the implants in tooth numbers 14, 27, 34, 36, 37, 44, 46, and 47 (P < 0.05) that were frequently implemented in 41-50 year old patients. It was found that the most frequent restoration type was single crowns and the first molar tooth received the highest number of implants. It was found that the regions that received the highest number of implants were the mandible and posterior regions. Conclusions: It was determined that the number of implants in the mandible increased with the age of the patients. It was observed that the implant-supported prosthetic treatment options varied based on the state of the jaws, the localization and width of the edentation, the income levels of the patients and their gender.
This study evaluated the effect of remineralization agents on bleaching efficiency, enamel mineral changes, and post-bleaching color stability. A total of 112 enameldentin blocks were prepared from bovine teeth. Following initial color measurements, separate treatment regimens were carried out as follows: negative control (no treatment); positive control (bleaching only); bleaching, then NaF; bleaching + NaF (mix); bleaching, then CPP-ACPF; bleaching + CPP-ACPF (mix); bleaching, then nHAP+F; bleaching + nHAP+F (mix). Color measurements were repeated after immersion in distilled water for 7 days, and again after staining with coffee solution for 14 days. The CIELAB-based whiteness index was used to evaluate bleaching efficiency, and the CIEDE2000 color difference formula for color stability. Chemical investigation was performed using scanning electron microscopy with energy dispersive spectroscopy and X-ray diffraction analyses. The experimental groups showed significant increases in whiteness compared to the negative control, and the staining after bleaching did not result in statistically significant differences between the groups. Energy dispersive spectroscopic analysis revealed that bleaching protocols had no impact on elemental levels as well as the ratio of Ca/P. The combined use of bleaching agents with remineralization agents did not affect bleaching effectiveness but also did not provide an additional contribution.
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